The choice panel is the place in the user interface of a customizer where the end-user interacts with the customization options, or Questions.
A question is the main unit of the choice panel. It contains customization options. In the example below, TOP, EXTRA LACES and SIZE are questions.
The Add to cart button allows to end-user to transfer his order to the ecommerce shopping cart.
Once the user clicks on the Add to cart button, a design is generated in MyCustomizer.
If the user completes his purchase an order is generated in MyCustomizer.